The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i386/include/ucontext.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  * Copyright (c) 1999 Marcel Moolenaar
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer 
   12  *    in this position and unchanged.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. The name of the author may not be used to endorse or promote products
   17  *    derived from this software without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   29  *
   30  * $FreeBSD$
   31  */
   32 
   33 #ifndef _MACHINE_UCONTEXT_H_
   34 #define _MACHINE_UCONTEXT_H_
   35 
   36 #if defined(_KERNEL) && defined(COMPAT_FREEBSD4)
   37 struct freebsd4_mcontext {
   38         __register_t    mc_onstack;     /* XXX - sigcontext compat. */
   39         __register_t    mc_gs;          /* machine state (struct trapframe) */
   40         __register_t    mc_fs;
   41         __register_t    mc_es;
   42         __register_t    mc_ds;
   43         __register_t    mc_edi;
   44         __register_t    mc_esi;
   45         __register_t    mc_ebp;
   46         __register_t    mc_isp;
   47         __register_t    mc_ebx;
   48         __register_t    mc_edx;
   49         __register_t    mc_ecx;
   50         __register_t    mc_eax;
   51         __register_t    mc_trapno;
   52         __register_t    mc_err;
   53         __register_t    mc_eip;
   54         __register_t    mc_cs;
   55         __register_t    mc_eflags;
   56         __register_t    mc_esp;         /* machine state */
   57         __register_t    mc_ss;
   58         __register_t    mc_fpregs[28];  /* env87 + fpacc87 + u_long */
   59         __register_t    __spare__[17];
   60 };
   61 
   62 struct freebsd4_ucontext {
   63         sigset_t        uc_sigmask;
   64         struct freebsd4_mcontext uc_mcontext;
   65         struct freebsd4_ucontext *uc_link;
   66         stack_t         uc_stack;
   67         int             __spare__[8];
   68 };
   69 #endif
   70 
   71 #include <x86/ucontext.h>
   72 
   73 #endif /* !_MACHINE_UCONTEXT_H_ */

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